Pressure effect on electrical properties and photoluminescence spectra of solid C60 and C70 fullerenes

被引：0
|
作者：
Buga, SG [1 ]
Blank, VD [1 ]
Sundqvist, B [1 ]
Dubitsky, GA [1 ]
Prokhorov, VM [1 ]
Serebryanaya, NR [1 ]
Kazarian, SA [1 ]
Oraevsky, AN [1 ]
Starodubtsev, NF [1 ]
机构：
[1] Technol Inst Superhard & Novel Carbon Mat, Troitsk 142190, Moscow Reg, Russia
来源：
FRONTIERS OF HIGH PRESSURE RESEARCH II: APPLICATION OF HIGH PRESSURE TO LOW-DIMENSIONAL NOVEL ELECTRONIC MATERIALS | 2001年 / 48卷
关键词：
high pressure; high temperature; fullerenes; electrical transport; photoluminescence;
D O I：
暂无
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Electrical resistivity of crystalline and disordered fullerite samples obtained by static high-pressure-high-temperature treatment of C-60 and C-70 at P = 12.5 GPa and T = 820-1500 K was investigated in the temperature range of 2.4-300 K, Room-temperature activation energy of charge carriers was found to be in the range 40-200 meV. T-3/2 and T-4 dependencies of conductivity versus temperature were revealed both in crystalline and disordered structures. Photoluminescence spectra of C-60 samples treated at P = 13 GPa. T = 770-1470 K show 50 nm short-wave length shift of characteristic 750 nm PL band.
引用
收藏
页码：483 / 491
页数：9
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